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RDD007

Sigma-Aldrich

Sodium phosphate monobasic

anhydrous, free-flowing, Redi-Dri™, ≥99.0%

Synonym(s):

Monosodium dihydrogen orthophosphate, Monosodium phosphate, Sodium dihydrogen phosphate

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About This Item

Linear Formula:
NaH2PO4
CAS Number:
7558-80-7
Molecular Weight:
119.98
EC Number:
231-449-2
MDL number:
MFCD00003527
UNSPSC Code:
12161700
PubChem Substance ID:
329824218
NACRES:
NA.25

grade

anhydrous

product line

Redi-Dri™

Assay

≥99.0%

form

powder

quality

free-flowing

pH

4.0-4.5 (25 °C, 50 g/L in water)

pKa (25 °C)

(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)

SMILES string

[Na+].OP(O)([O-])=O

InChI

1S/Na.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1

InChI key

AJPJDKMHJJGVTQ-UHFFFAOYSA-M

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General description

Sodium phosphate is a salt of sodium hydroxide and phosphoric acid. It is commonly used in buffers for molecular biology applications. It can also be used as a catalyst in some organic reactions.

Application

Sodium phosphate monobasic can be used:
  • As a catalyst in the synthesis of non-ionic surfactants used for adhesive and detergent applications.
  • As a component of phosphate buffer saline (PBS buffer) used in the study of glucose biosensor.

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Synthesis of environment friendly nonionic surfactants from sugar base and characterization of interfacial properties for detergent application
Lee S, et al.
Journal of Industrial and Engineering Chemistry, 38(19), 157-166 (2016)
Sodium dihydrogen phosphate as an efficient catalyst for one-pot, three-component synthesis of α-aminophosphonates under solvent-free conditions at room temperature
Karimi-Jaberi Z, et al.
Synthetic Communications, 40(19), 2948-2953 (2010)
Rapid synthesis of 2-substituted-2, 3-dihydro-4 (1 H)-quinazolinones using boric acid or sodium dihydrogen phosphate under solvent-free conditions
Karimi-Jaberi Z and Zarei L
South African Journal of Chemistry, 65(1), 36-38 (2012)
Synthesis of sorbital based nonionic surfactants and characterization of interfacial and adhesive properties for waterborne pressure-sensitive adhesives
Lim J, et al.
Colloids and Surfaces. A, Physicochemical and Engineering Aspects, 446(19), 80-89 (2014)
Nanoporous cerium oxide thin film for glucose biosensor
Saha S
Biosensors And Bioelectronics, 24(7), 2040-2045 (2009)
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